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Which is loudest?

#2
louder?
Well, a 410 will appear to be louder because it is pushing more air. And the 15 could sound extremely loud since it'll be playing lows, and thus, vibrating things. But if you're talk8ing loudness in terms of wattage, then they should all be equal.
 
#3
Is 4x10 pushing more air?
Now I start trying calculate. Correct me if I am wrong.

4x10 area:
10/2=5
5*5*pi=78.5
78.5*4=314
(where pi is 3,14)

2x10 + 1x15 area:
78.5*2=157
15/2=7,5
7,5*7,5*pi=176,625
177+157=334

With my calculation 2x10 + 1x15 has a bigger area (334) than 4x10 (314).

Am I correct?
 
#9
Now I start trying calculate. Correct me if I am wrong.

4x10 area:
10/2=5
5*5*pi=78.5
78.5*4=314
(where pi is 3,14)

2x10 + 1x15 area:
78.5*2=157
15/2=7,5
7,5*7,5*pi=176,625
177+157=334

The problem with these calculations is that 10 inch speakers are 10 inches at the mounting centers for the bolts/screws, and the radiating area is nowhere near that big. Same with 15s as well. You also haven't taken any coupling or cancellation effects of multiple drivers into account. Now consider that you're looking at truncated conical sections, not two dimensional round plates, and it appears to be a bit of a can o' worms, no? :cool:
 
#11
Very big can of worms. Cone area alone doesn't tell you squat. You also need to know excursion, sensitivity, bandwidth (-3db) and power handling. Knowing those five specifications can allow you to make a reasonable estimate of a drivers potential output capability. If any one of those factors is unknown an accurate prediction is not possible.
 
#13
It is possible to overthink things, guys. :p

Any given 4x10 will not be much different in volume than a 210+15 of the same design, assuming you get the total impedence preseneted to the amp the same.

They will sound quite different, though.

semborg -- just tell us what rig you are running that is not loud enough for you, and we can make specific reccomendations.
 
#15
Pickebass said:
IME the 410s tend to be louder. However, the 210/115 combination tends to be fuller and provides more depth to sound. Not exactly apples to apples.
Click to expand...

I used to used an Eden D-210XLT + Eden D-115XLT, and now use an Aguilar GS-410, both with Ampeg Pre and ~1000w power amps. I find the sounds so different that it is hard to compare the "loudness". The old rig sounded fuller and fatter, and loud as hell ... the new rig is punchy and fast and loud as hell.
 
#18
I would think that a 4x10 would sound louder, but the 2x10 + 1x15 would sound bigger. This is assuming everything is the same, etc.

The 4x10 will sounds louder because our ears hear mids more, which the 4x10 should have more of. However, the the 2x10 + 1x15 will sound bigger because it will give a "fuller" response.

Disclaimer: Which sounds louder or bigger or anything is all dependant on the cabinet(s) and speakers. The best way to find out is to try the exact combination you're looking at and use your own ears.
 

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